Well, I've been taking the new, natural eye drops for just under a week, I think. They don't burn like the Muro 128 drops do. I like that fact, though I'm not so sure they do as good of a job drying up my eyes and helping with the corneal swelling.
My eyes don't seem to be quite as sensitive to light as they were before, but today they are quite sensitive, so maybe it's just a coincidence. I am encouraged enough for now to continue to use them.